Velvet-like pile products



Feb. 9, 1965 s. PLOCH ETAL VELVET-LIKE FILE} PRODUCTS Filed July 20.1961 ATTORNEYS United States Patent 3,168,883 VELVET-LIKE PILE PRODUCTSSiegfried Ploch and Heinz Zschunke, Karl-Marx-Stadt,

Germany, assignors to Forschungsiustitut fur Textiltechnologie,Karl-Marx-Stadt, Germany Filed July 20, 1961, Ser. No. 125,443 2 Claims.(Cl. 112-411) This invention relates to a process for the production ofvelvet-like pile products for garments or industrial purposes.

The manufacture of velvet was effected up to now by weaving paralleljuxtaposed tubes formed from the threads of the fabric or knittingground with tubes formed from the binding pile threads. Subsequently,the pile threads of each tube are cut open and then loosened so that thepiles form rib-shaped tufts when raised. This production method,however, requires a great expenditure of labor to obtain a sufficientlydense pile for various commercial purposes.

Recently methods for producing piles have been used wherein the weavingand knitting is eliminated to a great extent, and only used, ifnecessary, for the production of the ground cloth. The pile is formedhere from tufts or thread loops, such as roving, chenille, etc., sewedor cemented to the ground cloth and cut open to form a pile.

These methods are suitable for the production of floor coverings,upholstery and similar fabrics, but they are not suitable for theproduction of velvet-like pile products since the resultant piles arenot sufficiently dense or short for velvet. Besides, no tubes are formedin the semi-finished products that can be processed with conventionalvelvet cutting devices and finishing machines.

Therefore, an object of this invention is to inexpensively producevelvet-like pile products with desirable pile thicknesses, whilemaintaining compatibility with present velvet cutting and refiningtechniques.

Another object is to facilitate the production of velvetlike pileproducts.

According to the invention, transverse yarns or fiber fleeces are placedon a prefabricated ground such as a fabric, knitting or textile web, andbound to the ground with parallel longitudinal seams arranged side byside. The tubes thus formed between the seams are subsequently cut openso that the crude product obtained may be further processed according toknown methods. The longitudinal seams can be produced by sewing and/orcementing, and by welding.

The sole figure of the drawing shows a section of a velvet-like pileproduct produced according to the process of the invention. Severalsteps of the manufacturing process can be seen in the drawing.

Yarns or fiber fleeces 2 are placed on a ground cloth 1 transverse tothe longitudinal direction of the ground. The juncture between theground 1 and the pile-forming yarns 2 is produced by longitudinallyarrayed seams 3. The longitudinal seams 3 are arranged closely side byside in the manner of quilting seams and may be sewed to the ground by,for example, multi-needle machines. Since a very tight seam is necessaryto obtain a particularly resistant velvet, the use of shrinkable sewingthreads such as polyvinylchloride is advisable.

Tubes 4 are formed by the longitudinal seams 3 and subsequently cut openby means of cutting knives as shown at 5 in a manner known in the velvetmanufacturing art. The tufted piles 6 may then be processed by finishingmethods which are also known.

It is also possible to form the seam by cementing or welding. Forexample, the welding may be effected in a known manner by using stripsof thermoplastic material or thermoplastic threads.

. Low-twisted rovings are preferably used as pile formmg yarns so thatno fine spinning capacity is required, and to substantially reduce thebrush passages required to loosen the fibers.

The process according to the invention has the additlonal advantage ofeliminating the operations of cross winding and weft winding and ofworking directly from large-size roving bobbins. The efiiciency achievedby binding the pile directly to the ground is higher than that achievedby the present methods for manufacturing velvets. It also permits theconstruction of production lines for the manufacture of velvet usingknown velvet finishing machines and increasing considerably theproducttv ty in the velvet finishing plant.

While a specific embodiment of the invention has been shown anddescribed in detail to illustrate the application of the inventionprinciples, it will be understood that the invention may be embodiedotherwise without departing from such principles.

What is claimed is:

1. A velvet-like ribbed fabric comprising a ground cloth and a pluralityof velvet-like ribs secured to an extenor surface of said cloth, each ofsaid ribs comprising a plurality of closely adjacent rounded tufts offibers, the tufts of each rib being separate and sewn to said exteriorsurface by a longitudinal threaded seam, the tufts in each rib beingaligned in a direction transverse to said ribs with the correspondingtufts of the adjacent ribs.

2. velvet-like ribbed fabric according to claim 1, wherein said tuftsare sewn to said exterior surface by means of a shrinkable thread.

References Cited by the Examiner UNITED STATES PATENTS 271,539 1/83Straw 112-411 2,089,755 8/37 Merwitz ll2-411 2,099,626 11/37 Robinson112411 2,23 8,089 4/41 Bradshaw 28-78 2,443,35 8 6/48 Michael-is 112-4112,636,252 4/ 53 Barnes et a1 28-78 2,699,593 1/55 Matthews 28-7 83,024,518 3/62 Newton 28-78 FOREIGN PATENTS 236,272 6/25 Great Britain.

DONALD W. PARKER, Primary Examiner.

RUSSELL C. MADER, Examiner.

1. A VELVET-LIKE RIBBED FABRIC COMPRISING A GROUND CLOTH AND A PLURALITYOF VELVET-LIKE RIBS SECURED TO AN EXTEROR SURFACE OF SAID CLOTH, EACH OFSID RIBS COMPRISING A PLURALITY OF CLOSELY ADJACENT ROUNDED TUFTS OFFIBERS, THE TUFTS OF EACH RIB BEING SEPARATE AND SEWN TO SAID EXTERIORSURFACE BY A LONGITUDINAL THREADED SEAM, THE TUFTS IN EACH RIB BEINGALIGNED IN A DIRECTION TRANSVERSE TO SAID RIBS WITH THE CORRESPONDINGTUFTS OF THE ADJACENT RIBS.